1310520687 has 32 divisors (see below), whose sum is σ = 2108651520. Its totient is φ = 707240160.

The previous prime is 1310520677. The next prime is 1310520689. The reversal of 1310520687 is 7860250131.

It is not a de Polignac number, because 1310520687 - 2⁶ = 1310520623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310520689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127108 + ... + 137030.

It is an arithmetic number, because the mean of its divisors is an integer number (65895360).

Almost surely, 2^1310520687 is an apocalyptic number.

1310520687 is a deficient number, since it is larger than the sum of its proper divisors (798130833).

1310520687 is a wasteful number, since it uses less digits than its factorization.

1310520687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10283.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1310520687 is about 36201.1144441715. The cubic root of 1310520687 is about 1094.3291309849.

The spelling of 1310520687 in words is "one billion, three hundred ten million, five hundred twenty thousand, six hundred eighty-seven".